In order to perform an EEG for the purposes of brain death evaluation (electrocerebral silence/inactivity, ECS/ECI), the procedure must be performed in a specific way with a technologist that is trained in EEG brain death criteria. Some of these criteria include the use of at least 8 scalp electrodes, 10 cm interelectrode distances, patient normothermia, and sensitivity setting of 2 microvolts per millimeter, among others. If the reading neurologist determines that there is no electrocerebral activity with these criteria, the determination of electrocerebral silence on EEG can be made, and this can assist in, but not definitively confirm, the diagnosis of brain death.